Home / 51,175.32-76,846.34-31,578.45

Finding the Fourth Proportional to 51,175.32, 76,846.34 and 31,578.45

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Solution

The fourth proportional to 51,175.32, 76,846.34 and 31,578.45 is: 47,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,175.32 : 76,846.34 = 31,578.45 : x
  2. Step 2: Convert to fraction form
    51,175.32/76,846.34 = 31,578.45/x
  3. Step 3: Cross multiply
    51,175.32x = 76,846.34 × 31,578.45
  4. Step 4: Simplify right side
    51,175.32x = 2,426,688,305.37
  5. Step 5: Solve for x
    x = 2,426,688,305.37/51,175.32
  6. Step 6: Final answer
    x = 47,419.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.